Coke-oven door



March 10, '1925.

J. P. PINDER COKE OVEN DOOR Filed April 9, 192.):

INVENTOR Y E N R O I I A Patented Mar. 10, 1925 UNITED stares-'5COKE-OVEN DOOR;

Application filed April 9,

To all whom it'mag concern:

Be it known :that I, J RvIsP. Primal 3a citizen of theUnited States, anda resident of the city of Johnstown, county of tflambria, and State ofPennsylvania,- have, 111 1 vented certain new and-useful Improvements inCoke-Oven Doors; and I do hereby declare the following to be a' full,clear,'and

exact description of the invention,,-su-oh as will enable others skilledin the art to which it appertains to make and use the samefl Myinvention relates'to a door for coke ovens, especially those of thehorizontal product type, and relates more'particularly.

to the construction and arrangementof a rabblingdoor, or so-called chuckdoorforming part thereof. These rabbhng doors are arranged inv the upperpart of the coke oven main doors and are adapted to provide small I andconvenient openings '1 through which'f'a leveling tool may be insertedfor the purpose of levelingoff the charge of coal after it has beendumped'through the top of the,

oven from a' coal larry or otherwise. I

After the coal is dumped into the oven the top surface thereof may beirregular,

andit is then leveled by the levelingltojol,-

which tool is ordinarily mounted on the coke pusher andis insertedthrough the rabbling door opening; a Afterthe oven is charged with coaland the rabbling door is s ch ne work, 'exceptposs bly the drilling ofopen, the leveling'tool inserted and the coal charge leveled by thereciprocating 'movej ment thereof, and after thisis donefthe 'rabblingdoor is closed and firmly seated in" position to maintain the oventight.Prevlousv doors of this kind haverequired'the use-of lute, clay, etc,for sealing-them, but

by means of my invention and the construction thereof the necessity forthis is obviated, V .7

r so that afterwards whenever the door is put 'in'p'lace it fitssubstantially ltight in all parts as will be further hereinafterexplained.

My construction is also of a character such that expensive machine workon the door and parts thereof is eliminated, and p constructions, wh1ch'requ1re lute, my door 1s I am able to furnish coke oven rab'bling doorsand frames therefor of ordinary castings, which can'easily be tightlyclosed and" maybe of any other shape desiredyand the;

frame therefor is madewith angular ornarrow edges surroundlng theexterior of -the opening, and the rabbling door is made of 1923. Serialm; eaaeea-I plug type with tapered..iedges adapted to; fit thereinand'provided-yvithja loosehlngefg and-ayoke and a central,camfiarrangrimeltt, whereby it maybe swungintoplace andfthen pushedfirmlyinto the, opening'fiandheld by the cam, and this can be doneuniformly 134$? thev o i e; perm ts h -p ug:d0o ;t ib

pushed bodily; intoflplace to seatl'itagainst; 7 i

the frame; When this fiss done thesharp ornarrow edges ofthe fra'm'econtact with the j tapered edges. of the plug; rabbl ingdo'or and formtight; contact fofthe door and jamb, and in this respect myrabbling doorisi mproved-yo ver otherconstructions, as it requires no addedsealingmeans;

I have found that my plug-door is tight; and free from leakage when itand the-jamb' are clean, -but should there bea deposit or incrustationof tar, soot or; other material on the edges of the door or gjamb thenarrow or angular corners cut or scrape, through such deposit when 'th'edoor is pushed into closed position, thus.v providing; direct contact ofthe parts to form ,atight-B closure, and in certain cases fsuch a"deposit; might provide an additional seal, but such. seal is reallyunnecessary with. my-construci tion. l J

The main coke oven door maybe a cashing without any machining,.-and theplug door may also be a castingwithout anyma-r the hinge pin holes ifdesired. When con- 1 structing this door I may. force' the plug doorinto position against the jamb,r and then by means of alblun't nosedcalkingtoo'lor otherwise, force the metal of the door} jamb againstthedoor so that in spite'of, the rough castings the edges ofthe jamb'ij'conform to the outli-neof1the tapered plug-g and prevents leakage fro'mrthe oven. 1

.As compared-with rabbling doorsofother;

2' i i a v of my inventiom'I will now, in order to make the matter moreclear, refer to theannexed sheet of drawings, which form part of thisspecification, and in which like char acters refer to likeparts:

Figure 1 is a front elevation of a coke oven door with my improvedrabbling door at the upper portion thereof; Figure 2 isa verticallongitudinal sectional elevation taken on the line IIII of Figure 1;Figure is an end elevation of the yoke and the cam pivo'ted thereto;Figure 4 is a side elevation'of the yoke and cam, and Figure 5 is a'transverse sectional elevation taken on the lineV-V of Figure 1.

Referring now to the characters'of referenceon the drawings:-1 is theJamb Wall i of anoven having channel binders or buckstays asillustrated, which'is shown of form adapted to receive a coke ovendoor'of the type shown, but-these main jambs may be of any form desiredto receive any type of main oven door that may be desired; 2 is the bodyof the coking chamber of the oven; 3 are the inclined portions ofthe jamb walls thereofy is the main coke oven door having side portions 5,a-bottom flange 6, a'

top flange '7, edgeflanges or sides 8, while 9 is filled with bricks 13,which maybe removed are thevertical exterior flanges of the doorconnected by the cross flanges 10, which are adapted to stiffen andstrengthen the door and aid in cooling thereof by. exposure to the outerair. The vertical flanges 9 are 'pro vvided with reinforcing ribs 11,and 12 is an opening in the bottom of the main door which when desiredfor the purpose of introducing gas-pipes, etc., when starting up theoven,

after which the opening is closed by the bricks 13. The main door isprovided with brick orrefractory lining 14 and has a ra'b bling dooropening 15 nearitsupper end. This rabbling door opening 15 is providedwith boundaries or jambs 16, the edges of which'are arranged atanangleor substantiallynarrow or sharp as shown, adapted to recelvethegplug-shaped rabbling door 17.

This rabbling door has tapered or beveled edges 18 and a refractorylining 19. This rabbling door is provided with hinge lugs 20, adapted toco-operate and register with bodily by the cam 33when seatingit againstits-jamb; The rabbling door 17 has a central rib-23 provided withoutstanding flanges 24:, to which a wear plate'25 is secured by means ofthe-bolts 26. The plug door itself may preferably be made of cast, iron,

while the wearing plate may be made of hard steel, and is removable, andmay easily be lined up, shimmed or replaced when the parts are so wornthat the cam 33, which contacts with it, will firmly push the rabblingdoor into the position illustrated in Figures 1, 2 and 5. Reinforcingribs 27 are provided to strengthen the rabbling door as illustrated. Inorder to close the door "I provide a yoke 28 formed with a slot 29 inthe central portion thereof, the ends being provided with eyes orperforated end portions 30 adapted to project between the correspondinglugs or cars 31 formed on the main door adjacent to the rabbling dooropening, and this yokeis pivotally attached. thereto by the hinge pins32. Mounted at the central portion of the yoke is a cam 33,. :whichispivoted thereon by means'of the bolt or'pin 34, and it is provided withthe outstanding lever arm 37 forming part thereof for the purpose ofoperating it.,

The main cokeoven door has upper rounded outstanding flanges 35connected by a rod or bar 36, which is adapted to receive the lifting orhandling mechanism for the main door (not shown).

The operation of my rabbling door is as:

follows :The coal having been charged into the oven through the topopenings thereof (not shown) if the rabbling door is closed, the camlever 37 isfirst moved upwardly,, thereby releasing the rabbling door 17whereupon the yoke 28 is swung to the right and the door 17 is swung tothe left as indicated by broken lines in Figure 5,."thereby leaving therabbling opening 15 open for the introduction of the leveling tool. Theleveling tool is then inserted through the rab bling doorway, the coalis leveled, the leveling tool withdrawn and the rabbling open ing closedby swinging the tapered door 17 into the position shown in Figure 5,then turning the yoke 28 over the door and then pushing the door 17firmly into position by moving the lever 37 downwardly, thereby causingthe cam 33 to contact with the door 17 and clamping it firmly in place;and this is done uniformly by reason of the loose hinge pin of the plugdoor as before described. If the jamb 16 or the door 17 itself or thebevelededges 18 thereof are en crusted with tar, soot, or othermaterial, this forcible closure of the same against the sharp or narrowedges 16 of the doorway will cut or scrape through these deposits andcause the beveled or tapered metal edges of the door to be solidlyseated against the narrow or sharp corners 16 of the door jamb'.

Although I have described the 'rabbling door jamb as provided withsubstantially angular exterior corners surrounding the opening, thesecorners need not be very sharp, but might be slightly rounded or,

provided with a slight bevel, as indicated in Figure 2 to provide anarrow bearing surface against which the plug. door is seated. Thecorners of the jamb, however, should be narrow enough so that thepressure of seating the tapered plug against the same need not beexcessive to cause a tight closure of the rabbling door opening in themanner indicated.

Although I have shown and described my invention in considerable detail,I do not wish to be limited to the exact and specific details thereof,as shown and described, but may use such modifications in, substitutionsfor, or equivalents thereof as are embraced within the scope of myinvention, or as pointed out in the claims.

Having thus described my invention, what I claim and desire to secure myLetters Patent is 1. A coke oven door having a rabbling door openingtherein, a jamb therefor, a closure for said opening comprising a plugwith tapered edges adapted to contact with the corners of the j amb, andmeans for holding said closure firmly in position.

2. A coke oven door having a rabbling door opening therein, a jambaround said opening having exterior angular corners, a door thereforhaving tapered edges adapted to contact with the corners aforesaid, andmeans for firmly securing the door in position against said jamb.

3. A coke oven door having a rabbling door opening therein, a jambtherefor provided with a narrow exterior corner, a tapered plug rabblingdoor adapted to fit said opening with its tapered edges contacting withthe said corner of said jamb, a yoke secured to said coke oven door, anda cam pivoted on said yoke adapted to contact with and force and holdthe rabbling door in position.

4. A coke oven door provided with a rabbling door opening therein, a jamb surrounding said opening having an exterior substantially narrowcorner portion, a tapered plug door adapted to close said opening withits tapered edges contacting with the corner aforesaid, a yoke securedto the coke oven door, adjacent the plug door, and pressure means onsaid yoke whereby the plug door may be firmly pressed to or releasedfrom its closed position.

5. A main coke oven door having a rabbling door opening therein, ajambsurrounding said opening with a substantially narrow exterior corner, aplug door with a tapering edge adapted to close said opening with itsedge contacting with said corner,

said plug being loosely hinged to the main cokeoven door, a yoke adaptedto surround said plug door with its ends pivoted to said main coke ovendoor, a cam mounted in said yoke, provided with a lever adapted to forcethe plug firmly against the jamb corner to close the rabbling opening,said door being adapted to be opened by releasing-the cam and swingingthe yoke and door on their respective pivots.

6. A main coke oven door having a rabbling door opening therein, a jambsurrounding said opening having substantially narrow or angular corners,a plug door with tapering edge adapted to partially project within saidopening with its tapered edge contacting withthe said corners of the jamb, said plug door being'loosely hinged to the main coke oven door, ayoke adapted to partially surround said plug door with its ends pivotedto said main coke oven door, a cam mounted in said yoke, provided with alever adapted to force the plug door firmly against the jamb corners toclose the rabbling opening, said plug door being adapted to be opened byreleasing the cam and swinging the yoke and plug door oppositely ontheir respective pivots.

7. A main coke oven door having a rabbling door opening therein, a 'ambsurrounding said opening having su stantially narrow exterior corners, aplug door with tapering edges adapted to partially project within saidopening with its tapered edge contacting with the narrow cornersof saidj amb, a wear plate removably secured to the outer portion of said plugdoor, said plug door being loosely hinged to the main coke oven door, ayoke adapted to partially surround said plug door with its ends pivotedto said main coke oven door, a cam mounted in said yoke, provided with alever, and adapted to contact with said wear plate to force the plugfirmly against the jamb corners to close the rabbling opening, said plugdoor being adapted to be opened by releassignature- JARVIS P. FINDER.

